APA Style
Guritno, S. et al (2011).
Theory and Application of IT Reserch: Metodologi Penelitian Teknologi Informasi .
Yogyakarta:
Andi.
MLA Style
Guritno, Suryo. et al.
"Theory and Application of IT Reserch: Metodologi Penelitian Teknologi Informasi".
Yogyakarta:
Andi,
2011.
Informatika.